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{{Main|Tacoma Narrows Bridge (1950)}} |
{{Main|Tacoma Narrows Bridge (1950)}} |
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[[File:Tacoma Bridge Puget.jpg|left|thumb|The westbound span in 1988.]] |
[[File:Tacoma Bridge Puget.jpg|left|thumb|The westbound span in 1988.]] |
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After the infamous fall of the original bridge, Professor Farquharson was commissioned again to test new designs for the bridge at the [[University of Washington]], the home of these models. Tests ensured the new design would have a different outcome than the first and construction began on April 12, 1948, following the completion of a financing and insurance plan.<ref name=":0" /><ref name="TNT-Timeline">{{cite news |date=October 14, 1950 |title=Narrows Bridge Was Designed Like Plane |page=C2 |work=The News Tribune |url=https://www.newspapers.com/clip/113463650/narrows-bridge-was-designed-like-plane/ |via=[[Newspapers.com]] |accessdate=November 22, 2022}}</ref> A [[1949 Olympia earthquake|major earthquake]] struck the construction site on April 13, 1949, but the only damage was to a cable that fell into the water and was recovered; a fire two months later on the west tower damaged equipment and tools but did not cause permanent damage. The {{convert|502|ft|m|adj=mid}} towers were complete in July 1949 and the cables for the new bridge were finished on January 16, 1950.<ref name="TNT-Timeline" /> The current westbound bridge was designed and rebuilt with open [[truss]]es, stiffening [[strut]]s and openings in the roadway to let wind through.{{cn|date=November 2022}} It opened on October 14, 1950, and is 5,979 feet (1822 m) long—40 feet (12 m) longer than the first bridge. The new bridge cost $18 million to construct.<ref>{{cite news |date=October 15, 1950 |title=Governor Dedicates New Tacoma Narrows Bridge |page=1 |work=[[The Bellingham Herald]] |agency=Associated Press |url=https://www.newspapers.com/clip/113463690/governor-dedicates-new-tacoma-narrows/ |via=Newspapers.com |accessdate=November 22, 2022}}</ref> Local residents nicknamed the new bridge Sturdy Gertie, as the oscillations that plagued the previous design had been eliminated.<ref>{{cite news |last=Vogel |first=Elmer C. |date=October 14, 1950 |title=Narrows Bridge Is Result of Research |page=C3 |work=The News Tribune |agency=Associated Press |url=https://www.newspapers.com/clip/113463738/narrows-bridge-is-result-of-research/ |accessdate=November 22, 2022}}</ref> This bridge |
After the infamous fall of the original bridge, Professor Farquharson was commissioned again to test new designs for the bridge at the [[University of Washington]], the home of these models. Tests ensured the new design would have a different outcome than the first and construction began on April 12, 1948, following the completion of a financing and insurance plan.<ref name=":0" /><ref name="TNT-Timeline">{{cite news |date=October 14, 1950 |title=Narrows Bridge Was Designed Like Plane |page=C2 |work=The News Tribune |url=https://www.newspapers.com/clip/113463650/narrows-bridge-was-designed-like-plane/ |via=[[Newspapers.com]] |accessdate=November 22, 2022}}</ref> A [[1949 Olympia earthquake|major earthquake]] struck the construction site on April 13, 1949, but the only damage was to a cable that fell into the water and was recovered; a fire two months later on the west tower damaged equipment and tools but did not cause permanent damage. The {{convert|502|ft|m|adj=mid}} towers were complete in July 1949 and the cables for the new bridge were finished on January 16, 1950.<ref name="TNT-Timeline" /> The current westbound bridge was designed and rebuilt with open [[truss]]es, stiffening [[strut]]s and openings in the roadway to let wind through.{{cn|date=November 2022}} It opened on October 14, 1950, and is 5,979 feet (1822 m) long—40 feet (12 m) longer than the first bridge. The new bridge cost $18 million to construct.<ref>{{cite news |date=October 15, 1950 |title=Governor Dedicates New Tacoma Narrows Bridge |page=1 |work=[[The Bellingham Herald]] |agency=Associated Press |url=https://www.newspapers.com/clip/113463690/governor-dedicates-new-tacoma-narrows/ |via=Newspapers.com |accessdate=November 22, 2022}}</ref> Local residents nicknamed the new bridge Sturdy Gertie, as the oscillations that plagued the previous design had been eliminated.<ref>{{cite news |last=Vogel |first=Elmer C. |date=October 14, 1950 |title=Narrows Bridge Is Result of Research |page=C3 |work=The News Tribune |agency=Associated Press |url=https://www.newspapers.com/clip/113463738/narrows-bridge-is-result-of-research/ |accessdate=November 22, 2022}}</ref> This bridge, along with its new parallel eastbound bridge, are currently the fifth-longest suspension bridges in the United States. |
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When built, the westbound bridge was the third [[List of longest suspension bridge spans|longest suspension bridge span in the world]].<ref>{{cite book | last= Holstine | first = Craig E. | title = Spanning Washington : historic highway bridges of the Evergreen State | publisher = [[Washington State University Press]] | pages = 61–62 | year = 2005 | isbn = 0-87422-281-8 }}</ref> Like other modern suspension bridges, the westbound bridge was built with steel plates that feature sharp entry edges rather than the flat plate sides used in the original Tacoma Narrows Bridge (see the [[suspension bridge]] article for an example). |
When built, the westbound bridge was the third [[List of longest suspension bridge spans|longest suspension bridge span in the world]].<ref>{{cite book | last= Holstine | first = Craig E. | title = Spanning Washington : historic highway bridges of the Evergreen State | publisher = [[Washington State University Press]] | pages = 61–62 | year = 2005 | isbn = 0-87422-281-8 }}</ref> Like other modern suspension bridges, the westbound bridge was built with steel plates that feature sharp entry edges rather than the flat plate sides used in the original Tacoma Narrows Bridge (see the [[suspension bridge]] article for an example). |
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